A cut-through forwarding scheme for delay optimization in IEEE 802.16j Simultaneous Transmit and Receive multihop relay networks

Wen Kang Jia*, Yaw-Chung Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Simultaneous Transmit and Receive (STR) relaying is the most important feature as a Multi-hop Relay solution in WiMAX technologies to improve performance and extend coverage. This article contributes to the performance on unalignment modes in OFDM-based relay framework and applying in WiMAX standard which refer as IEEE 802.16j STR MAC. We proposed a cut-through scheme based on unalignment approach on OFDM-based symbol scheduling which provides lower forwarding latency per hop by shifting the alignment of frame duration between the superordinate RS and subordinate RS(s), wherein the intermediate RS starts forwarding an OFMD frame before the whole frame has been received, normally as soon as the sub-frame is processed. Compared with legacy synchronous STR relaying, an unaligned STR relaying can provide a MS which is attached to the farthest RS, and still get a satisfied One Way Delay (OWD) and Round Trip Time (RTT). In addition, we demonstrate a significant performance improvement; the result shows the importance of defining unalignment approach of the OFDM-based multi-hop relaying topology.

Original languageEnglish
Title of host publicationProceedings of the 1st International Conference on Networking and Distributed Computing, ICNDC 2010
Pages65-69
Number of pages5
DOIs
StatePublished - 1 Dec 2010
Event1st International Conference on Networking and Distributed Computing, ICNDC 2010 - Hangzhou, Zhejiang, China
Duration: 21 Oct 201024 Oct 2010

Publication series

NameProceedings of the 1st International Conference on Networking and Distributed Computing, ICNDC 2010

Conference

Conference1st International Conference on Networking and Distributed Computing, ICNDC 2010
CountryChina
CityHangzhou, Zhejiang
Period21/10/1024/10/10

Keywords

  • 802.16j
  • Mobile Multi-hop Relay (MMR)
  • Round Trip Time (RTT)
  • Simultaneous Transmit and Receive (STR)

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    Jia, W. K., & Chen, Y-C. (2010). A cut-through forwarding scheme for delay optimization in IEEE 802.16j Simultaneous Transmit and Receive multihop relay networks. In Proceedings of the 1st International Conference on Networking and Distributed Computing, ICNDC 2010 (pp. 65-69). [5645402] (Proceedings of the 1st International Conference on Networking and Distributed Computing, ICNDC 2010). https://doi.org/10.1109/ICNDC.2010.23